A practical solution for stock market integration

摘要

In this article we will present a practical solution for building an integration tier between an online trading platform and two stock exchange markets, in a SOA like architecture. We will present, in the space constraint of an article, how a solution can be build using XML, Java and PL/SQL and not third-party costly solutions. This approach, even if it is more difficult to develop and implement, helps a company to control the solution. The company will not be tied to SOA vendors that are usually keeping their software as secret as possible, demanding that they will develop, an additional costs, all the future developments. We chose XML for communication, not only because of the constraints given by the systems we integrate, but also because is the natural choice in a SOA like solution. XML it's being used to enable web services and similar, often custom, RPC functionality to allow greater access to data across multiple systems within an organization and allowing the possibility of future systems to be created from collections of such RPC functionality.